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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,341 papers · 148 categories

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20416181 · Jun 202019922001200920182026
48 results for Translational Symmetry

The paper shows translating solitons in R4\mathbb{R}^4 have SO(2)SO(2) symmetry.

problem Understanding the symmetry of translating solitons in R4\mathbb{R}^4.
method Analyzing the blow-up limits of embedded, mean convex mean curvature flow.
result Translating solitons in R4\mathbb{R}^4 have SO(2)SO(2) symmetry.

The study examines translating solitons of mean curvature flow and finds upper bounds and symmetries.

problem Understanding translating solitons in mean curvature flow.
method Non-existence results, upper bounds, graphical perturbations, and symmetry analysis.
result Compact translators between parallel planes inherit symmetries of their boundaries.

New proof shows symmetry for certain curved surfaces in higher dimensions.

problem Understanding symmetries in curved surfaces evolving over time.
method Generalized previous result to higher dimensions, proving symmetry condition.
result Uniformly 3-convex translating solitons must have SO(n1)SO(n-1) symmetry.

Researchers prove existence of convex translators in slab regions in all dimensions.

problem Existence of translating solutions in slab regions.
method Proof in all dimensions n2n\geq 2; slab width πsecθπ\secθ; convexity and regularity results for symmetrical translators.
result Existence of convex translators in specific slab regions.

The symmetries of paths in a manifold MM are classified with respect to a given pointwise proper action of a Lie group GG on MM. Here, paths are embeddings of a compact interval into MM. There are at least two types of symmetries: Firstly, paths that are parts of an integral curve of a fundamental vector field on $…

2015-03-21abs ↗pdf ↗

Constructing solutions to geometric flows with rotational symmetry.

problem Finding solutions to extrinsic geometric flows with specific properties.
method Rotationally symmetric translating solutions constructed for α\alpha-homogeneous speeds.
result These solutions are necessarily convex and have specific asymptotic behaviors.

The paper classifies and describes translators in SL(2,R)SL(2,\mathbb{R}) under specific symmetry conditions.

problem Classifying translators in SL(2,R)SL(2,\mathbb{R}) under invariant symmetry groups.
method Analyzing translators invariant by one-parameter groups of isometries, using Iwasawa decomposition and Killing vector fields.
result Explicit parametrizations of translators are obtained for some cases.

New methods prove existence of rotating shapes moving in space.

problem Existence of rotating shapes moving in space.
method Different methods to prove existence based on singular ordinary differential equation.
result Existence of rotationally symmetric translating solutions proven without partial differential equations.

New Lagrangian and special Lagrangian examples found in complex space.

problem Constructing exact Lagrangian and special Lagrangian submanifolds with symmetries.
method Using an Ansatz generalizing Castro-Lerma's construction, with admissible compact and non-compact subgroups.
result Explicit examples of Lagrangian translators and special Lagrangians with various symmetries.

We prove the existence of a complete, embedded, singly periodic minimal surface, whose quotient by vertical translations has genus one and two ends. The existence of this surface was announced in our paper in {\it Bulletin of the AMS}, 29(1):77--84, 1993. Its ends in the quotient are asymptotic to one full turn of the …

1996-05-17abs ↗pdf ↗

Maximal hypersurfaces in spacetimes with translational symmetry are characterized and their properties studied.

problem Characterizing maximal hypersurfaces in spacetimes with translational symmetry.
method Analyzing quotient spacetimes and using properties of maximal hypersurfaces.
result Complete noncompact maximal hypersurfaces in quotient spacetimes are either cylinders or conformal to the Euclidean plane.

This work relaxes GNN symmetries to approximate automorphisms, improving model performance.

problem Improving graph neural network performance on asymmetric graphs.
method Formalizing approximate symmetries via graph coarsening, introducing a bias-variance formula.
result Best generalization performance achieved by choosing a larger symmetry group than automorphisms but smaller than permutations.

The decomposition of the space of continuous and translation invariant valuations into a sum of SO(n) irreducible subspaces is obtained. A reformulation of this result in terms of a Hadwiger type theorem for continuous translation invariant and SO(n)-equivariant tensor valuations is also given. As an application, symme…

2010-08-23abs ↗pdf ↗

Study invariant λλ-translators in Lorentz-Minkowski space.

problem Characterize λλ-translators invariant under translations and rotations.
method Analyze 1-parameter group of translations and rotations, find explicit parametrizations, and solve non-linear autonomous systems.
result Explicit parametrizations and qualitative properties of invariant λλ-translators.

The paper proves nonexistence results for translating solitons in r-mean curvature flow.

problem Proving nonexistence of translating solitons in r-mean curvature flow.
method Establishing nonexistence results under suitable growth conditions on curvature and second fundamental form.
result Properly immersed translating solitons cannot be confined to certain half-spaces.

We prove that the focal set generated by the reflection of a point source off a translation invariant surface consists of two sets: a curve and a surface. The focal curve lies in the plane orthogonal to the symmetry direction containing the source, while the focal surface is translation invariant. This is done by const…

2005-10-23abs ↗pdf ↗

The homotopy theory of topological defects in ordered media fails to completely characterize systems with broken translational symmetry. We argue that the problem can be understood in terms of the lack of rotational Goldstone modes in such systems and provide an alternate approach that correctly accounts for the intera…

2009-05-21abs ↗pdf ↗

Probabilistic models often have parameters that can be translated, scaled, permuted, or otherwise transformed without changing the model. These symmetries can lead to strong correlation and multimodality in the posterior distribution over the model's parameters, which can pose challenges both for performing inference a…

2013-12-19abs ↗pdf ↗

We prove that any holomorphic locally homogeneous geometric structure on a complex torus, modelled on a complex homogeneous surface, is translation invariant. We conjecture that this result is true is any dimension. In higher dimension we prove it here for nilpotent models. We also prove that in any dimension the trans…

2015-09-03abs ↗pdf ↗

The study of compact λλ-translating solitons with boundary conditions.

problem Understanding the shape and existence of compact λλ-translating solitons with boundary constraints.
method Analyzing the mean curvature equation and boundary conditions to deduce the existence and shape of λλ-translating solitons.
result Conditions for the existence of compact λλ-translating solitons with boundary and estimates of surface area.

The paper proves unique ancient solutions to mean curvature flow in higher dimensions are symmetric.

problem Proving uniqueness of ancient solutions to mean curvature flow in higher dimensions.
method Analyzing strictly convex, uniformly two-convex, and noncollapsed ancient solutions.
result Ancient solutions are rotationally symmetric translating solitons.

Generates valid Euclidean distance matrices for molecular structures.

problem Generating point clouds in arbitrary rotations and translations is challenging.
method Developed a neural network architecture that produces valid Euclidean distance matrices invariant to rotations and translations.
result The architecture can generate molecular structures in a one-shot fashion by producing Euclidean distance matrices with a three-dimensional embedding.

L-CNNs maintain gauge symmetry on non-Abelian lattice theories.

problem Applying convolutional neural networks to non-Abelian lattice gauge theories while preserving gauge symmetry.
method Developed a geometric formulation of L-CNNs that are equivariant under global symmetries and gauge transformations.
result Convolutional operations in L-CNNs are a specific case of gauge-equivariant neural networks on SU(NN) principal bundles.

This paper aims to incorporate passive symmetries in machine learning for better generalization.

problem Machine learning's reliance on arbitrary choices leads to passive symmetries that can limit generalization.
method Translation among physics, mathematics, and machine learning to understand and implement passive symmetries.
result Respecting passive symmetries can improve machine learning's ability to generalize.

Stability of catenoid in hyperbolic space proven without symmetry assumptions.

problem Stability of catenoid in hyperbolic space.
method Profile construction, modulation analysis, integrated local energy decay, vectorfield method.
result Nonlinear asymptotic stability of catenoid for n5n \geq 5 without symmetry assumptions.

The study constructs minimal surfaces in a product space with specific properties.

problem Constructing minimal surfaces with specific topological and geometric properties in a product space.
method 1-parameter families of complete properly Alexandrov-embedded minimal surfaces with dihedral symmetry and finite total curvature.
result Examples of minimal surfaces with genus 1 and 2k ends in quotient spaces.